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Scientific American, Vol. 2, No. 8 (1860) (1860)

leaf 7

An illustration from Scientific American, Vol. 2, No. 8 (1860), 1860, leaf 7
mittee on thus permit the escape of all Patents in the House of Rep- the water from the trap, and resentatives:—Hon. William Millward, of Pennsylvania, prevent the freezing of the chairman; Stewart, of working parts. This trap is also used for Maryland; Burnham, of Connecticut; Niblack, of feeding… … ing of condensed water from done with the proposed new the cylinders of high pres- patent bill. If they do no, sure engines. more than simply to abolish. lumber which is sawed into inch boards is sold under the the distinction which now exists between foreign inven- The patent for this invention…

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